6074BD USB Oscilloscopes 4 Channels 70Mhz Bandwidth Oscilloscope Digital PC Hand held Electroscopic with 25Mhz Signal Generator
Meet or exceed the performance of bench oscilloscopes, four independent analog channels, 1GSa / s high-speed real-time sampling, 2mV-10V / DIV high input sensitivity, 250MHz high bandwidth.
Pass / Fail testing, extensive trigger functions, dynamic cursor tracking waveform recording and playback, and desktop oscilloscope similar interface, easy to use, cost-effective.
USB2.0 interface, plug and play, free external power supply.
Excellent industrial design, compact, easy to carry, and the shell is made of anodized aluminum of the iPad, not only beautiful, but also improves the alloy surface hardness, good heat resistance and abrasion resistance.
More suitable for tablet PCs, notebook computers, product line maintenance, easily on business.
Software Support: Windows10, Windows 8, Windows 7
Waveform data can be time-and voltage output to EXCEL, BMP, JPG.
More than 20 kinds of automatic measurement functions, PASS / FAIL Check, be suitable for engineering applications.
Waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division, X-Y display.
FFT spectrum analysis.
A computer can connect many DSO, extend channel easily.
USBXI standard interface, easy to insert USBXI chassis, consisting of a combination of instruments.
Secondary development library DLL provides, Labview \ VB \ VC \ QT developers provide example
1 x 6074BD usb oscilloscope;
2 x oscilloscope probe;(Note:Just 2pcs probes in the package,if you want to buy more,please contact with us directly!!!)
2 x BNC - clip cable;
1 x usb cable;
1 x CD (driver / manual... inside)
How to deal with the damage of oscilloscope bandwidth and signal fidelity?
High-speed signal acquisition and processing requires a series of connection and switching at the front end of oscilloscope.
The signal is transmitted from the DUT to the oscilloscope, via coaxial cable to the PCB, through the ball gate array (BGA) package, and then to the first integrated circuit (IC) for analog amplification or attenuation. The signal output package is then delivered to the PCB and sent to the next package containing the track and hold (T/H) IC. Only after this string of connections is the signal ready for sampling, analog-to-digital conversion, and storage. Unfortunately, this series of connections and switches and subsequent iterations degrade the signal before sampling, thereby compromising oscilloscope bandwidth and signal fidelity.
To overcome these problems, teck USES custom designed, highly integrated front-end multi-chip modules (MCM) in the DPO/ dsa7000d series oscilloscopes. MCM incorporates a variety of front-end acquisition and processing components, including coaxial cable input connectors, preamplifiers, tracking and holding chips, and terminal resistors, into one package, so that the PCB is never touched until the high-speed signal is sampled.
The custom front MCM package for the DPO/ dsa7000d series brings together a large number of previously dispersed components, including
● Two preamplifier chips;
● An 8-way tracking and holding (T/H) chip with analog filter;
● High performance 100GHz bandwidth connector
● Flexible connector to PCB.
Because it is a self-contained module, MCM reduces the number of connections through which signals flow and the number of possible sources of error. The user will not have multiple signal jumps through the single chip package and PCB layer, which will degrade the signal fidelity and oscilloscope bandwidth before sampling. Using high-performance cables, high-speed signals are transmitted directly from oscilloscope inputs to MCM and internal integrated circuits. IBM's 8HP technology is a 130-nanometer (nm)SiGe bipolar complementary metal oxide semiconductor (BiCMOS) process that performs twice as well as previous generation processes.
The analog front end of oscilloscope is the key to determine the bandwidth
The key to determine the bandwidth is the analog front end of the oscilloscope, including attenuator, amplifier and related circuits. It is the gate through which the measured signal enters the oscilloscope. The bandwidth of the test signal of the oscilloscope is determined by the bandwidth of the analog front end in many cases, which directly affects the background noise and range of the oscilloscope. The design of analog front end takes up more than half of the work in the hardware design of oscilloscope, and determines the hardware performance of oscilloscope to a large extent.
For the analog front end, the main performance indexes affecting the oscilloscope include:
●analog bandwidth, including the amplitude-frequency response characteristics of the measured signal, in the time domain as rise time index and overshoot performance index;
● dynamic range of input signal amplitude (range from minimum vertical sensitivity to maximum vertical sensitivity for non-digital processing);
● initial error characteristics and temperature drift characteristics of dc gain accuracy and offset accuracy;
● input impedance characteristics (parasitic capacitance of resistance in parallel) influence on the circuit under test with or without a probe.